The Halo Effect
one good trait makes people assume you're good at everything — and that's the whole game
Grounded in the research on Wikipedia: Halo effect; Edward Thorndike, 'A Constant Error in Psychological Ratings' (1920)
[ ] what it actually is
The halo effect is your brain taking one good trait and smearing it over everything else. Someone's attractive, so you assume they're also smart, kind, and competent — none of which you have evidence for. It's a single positive impression bleeding into unrelated judgments. This is the engine under every "looksmaxxing" claim: clean up one signal, and people quietly upgrade their whole read of you.
[ ] the real science
Edward Thorndike named it in 1920. He had military officers rate soldiers on separate traits — intelligence, physique, leadership, character — and found the ratings moved together way too tightly. An officer who looked sharp got scored smart and loyal too. The traits weren't actually correlated; the raters' single overall impression was leaking into every box. Decades of research since confirm it, especially with physical attractiveness driving the halo.